A student heats a beaker of ice and water and plots the temperature of the beaker as a function of time as shown below. Which statement among the following draws incorrect information about the plot?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

The curve ‘ab’ represents that ice and water are in equilibrium and temperature is constant

After 25 minutes, ice gets completely converted to water

Curve ‘bc’ represents decreasing temperature of water upon further heating

Ice melts at 273K after 25 minutes

answer is C.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Curve ‘bc’ represents increasing temperature and not the decreasing temperature of water upon further heating.

From the plot, we can see that, curve ‘ab’ is a straight line without any fluctuations in y-axis directions, hence curve ‘ab’ represents a constant temperature.

Also, curve ‘ab’ is observed at lower temperatures. Thus, curve ‘ab’ represents that ice and water exist at equilibrium and temperature is constant.

After 25 minutes we can see that the state transformation takes place between ice and water. Here, ice completely melts to water. Curve ‘bc’ increasing temperature of water upon further heating.

Watch 3-min video & get full concept clarity